榆树林油田集输、注水系统防垢技术研究

发布时间：2018-06-15 01:41

本文选题：集输系统 + 注水系统　；参考：《东北石油大学》2017年硕士论文

【摘要】：近年来,榆树林油田集输和注水系统结垢严重,影响了油田生产安全平稳运行,大幅度增加了维修维护成本费用。主要问题表现为:一是集油管网结垢堵塞影响生产运行;二是加热炉烟火管、盘管结垢导致炉效降低;三是注入水中较高含量的钙、镁离子,易引起井下管柱和地层产生结垢现象。针对该结垢问题,开展了一系列的理论与实验研究,通过结垢状况分析、化学剂筛选和现场跟踪试验等方面的综合研究,取得了如下研究结果:(1)通过对榆树林油田集输掺水系统和供、注水系统结垢情况普查,结合水样、垢样分析及结垢机理分析,找出目前结垢状况急需解决的问题。(2)从8种防垢单剂中筛选出性能较好的ATMP和HPMA,可作为基准物,初步检验成品防垢剂性能。单剂与成品对比表明:单一配方的产品,不能解决所有水样的防垢问题。(3)通过对防垢剂与絮凝剂、破乳剂、杀菌剂的配伍性实验,找到三类药剂与防垢剂之间配合使用的方法和注意事项。(4)以防垢率大于80%为目标,通过室内实验、现场跟踪检测和药量调整,制定出优化的现场加药制度。在此加药制度下,注水系统总加药量降低了28.5kg/d;集输系统总加药量降低了10.5kg/d。在新加药制度下,降低加药成本8.54万元/年。
[Abstract]:In recent years, the scaling of gathering, transportation and water injection systems in Yushulin Oilfield has been serious, which has affected the safe and stable operation of oil field production and greatly increased the cost of maintenance and maintenance. The main problems are as follows: first, the fouling blockage of the oil collecting pipe network affects the production operation; second, the pyrotechnic tube of the reheating furnace, the fouling of the coil tube causes the furnace efficiency to be reduced; and the third is the injection of higher contents of calcium and magnesium ions in the water. It is easy to cause downhole pipe string and formation to scale. Aiming at this problem, a series of theoretical and experimental studies have been carried out, including comprehensive research on scaling condition analysis, chemical agent screening and field tracking test, etc. The following research results are obtained: (1) through the general survey of scale formation in the water collection and transportation system and water supply and water injection system in Yushulin Oilfield, combined with water sample, scale sample analysis and scaling mechanism analysis, To find out the problem that needs to be solved at present) ATMP and HPMA which have better performance can be selected from 8 kinds of anti-scaling agents and can be used as reference material to preliminarily test the performance of finished anti-scaling agents. The comparison of single agent and finished product shows that the single formula product can not solve the problem of scale prevention of all water samples. The compatibility experiment of scale inhibitor with flocculant, demulsifier and fungicide is carried out through the experiment of compatibility of scale inhibitor with flocculant, demulsifier and bactericide. To find out the method of cooperating use between three kinds of medicament and antiscaling agent and the attention item. (4) taking the scale prevention rate more than 80% as the target, through the indoor experiment, the field tracking detection and the medicine quantity adjustment, the optimized field dosing system is worked out. Under this system, the total dosages of water injection system decreased by 28.5 kg / d, and the total dosages of gathering and transportation systems decreased by 10.5kg / d. Under the new drug addition system, the cost of drug addition was reduced by 85400 yuan per year.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE863;TE357.6

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